Grow bigger better flowers vegetables trees shrubs and houseplants and grow them twice as large (compared to unfed plants) with the help of Miracle-Gro® LiquaFeed® All Purpose Plant Food. Each bottle attaches to the Miracle-Gro® LiquaFeed® Feeder to make feeding as easy as watering. Easily attach a garden hose to an outdoor spigot and attach the Miracle-Gro® LiquaFeed® Feeder to the other end of the hose. Insert LiquaFeed® plant food bottle by twisting into the feeder. Rotate bottle until vertical. Turn knob to FEED. Turn on water and begin feeding with any watering device! Watering times will vary depending on the watering device used. Feeder has three spray patterns - shower jet and flat. Apply to all types of in-ground or container flowers vegetables trees shrubs and houseplants every 1-2 weeks. For the best results feed plants by applying to the soil at their base spraying each spot for a few seconds until the soil is saturated. Each bottle feeds up to 400 sq. ft. This set comes with four bottles of Miracle-Gro® LiquaFeed® All Purpose Plant Food.